Which of the Following Statements About the Fixation of Atmospheric

question 38

Multiple Choice

Which of the following statements about the fixation of atmospheric nitrogen (N₂) into NH₃ by living cells is false?

• A)It involves the transfer of eight electrons per mol of N₂.
• B)It occurs in certain microorganisms,but not in humans.
• C)It requires a source of electrons,normally ferredoxin.
• D)It requires one ATP per mol of N₂ fixed.
• E)It requires two key protein components,each containing iron.